On a royal engagement in Coventry on Tuesday, Middleton bent down to speak to a young boy who had been waiting three hours for his chance to meet the Duke and Duchess of Cambridge. She noticed that he didn't look well and sprang into action.

She went over to talk to one of her bodyguards and came back with a brown paper bag for him in case he was going to be sick. (She probably has plenty of these on hand for herself since she suffers from a severe form of morning sickness called h yperemesis gravidarum.)

Carole Flynn, a learning mentor at Corpus Christi primary school, told People that while it turned out not to be necessary, it was a thoughtful gesture that proves Middleton's mom skills.

"It was lovely of her," Flynn said. "She really took time with him. You can tell she is a mom, and has got that caring side."